Summary data stasiun Wanshouxigong

Dataset statistics

Number of variables	18
Number of observations	35064
Missing cells	5146
Missing cells (%)	0.8%
Duplicate rows	0
Duplicate rows (%)	0.0%
Total size in memory	4.8 MiB
Average record size in memory	144.0 B

Variable types

Numeric	15
Categorical	3

Alerts

`station` has constant value ""	Constant
`CO` is highly overall correlated with `NO2` and 3 other fields	High correlation
`DEWP` is highly overall correlated with `PRES` and 1 other fields	High correlation
`NO2` is highly overall correlated with `CO` and 4 other fields	High correlation
`No` is highly overall correlated with `year`	High correlation
`O3` is highly overall correlated with `NO2` and 1 other fields	High correlation
`PM10` is highly overall correlated with `CO` and 3 other fields	High correlation
`PM2.5` is highly overall correlated with `CO` and 2 other fields	High correlation
`PRES` is highly overall correlated with `DEWP` and 1 other fields	High correlation
`SO2` is highly overall correlated with `CO` and 1 other fields	High correlation
`TEMP` is highly overall correlated with `DEWP` and 2 other fields	High correlation
`WSPM` is highly overall correlated with `NO2`	High correlation
`year` is highly overall correlated with `No`	High correlation
`PM2.5` has 696 (2.0%) missing values	Missing
`PM10` has 484 (1.4%) missing values	Missing
`SO2` has 669 (1.9%) missing values	Missing
`NO2` has 754 (2.2%) missing values	Missing
`CO` has 1297 (3.7%) missing values	Missing
`O3` has 1078 (3.1%) missing values	Missing
`RAIN` is highly skewed (γ1 = 26.53152903)	Skewed
`No` is uniformly distributed	Uniform
`No` has unique values	Unique
`hour` has 1461 (4.2%) zeros	Zeros
`RAIN` has 33684 (96.1%) zeros	Zeros
`WSPM` has 635 (1.8%) zeros	Zeros

Reproduction

Analysis started	2024-03-08 05:17:18.731463
Analysis finished	2024-03-08 05:18:04.007421
Duration	45.28 seconds
Software version	ydata-profiling vv4.6.5
Download configuration	config.json

No
Real number (ℝ)

HIGH CORRELATION UNIFORM UNIQUE

Distinct	35064
Distinct (%)	100.0%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	17532.5

Minimum	1
Maximum	35064
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	1754.15
Q1	8766.75
median	17532.5
Q3	26298.25
95-th percentile	33310.85
Maximum	35064
Range	35063
Interquartile range (IQR)	17531.5

Descriptive statistics

Standard deviation	10122.249
Coefficient of variation (CV)	0.57734204
Kurtosis	-1.2
Mean	17532.5
Median Absolute Deviation (MAD)	8766
Skewness	0
Sum	6.1475958 × 10⁸
Variance	1.0245993 × 10⁸
Monotonicity	Strictly increasing

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1	1	< 0.1%
23379	1	< 0.1%
23373	1	< 0.1%
23374	1	< 0.1%
23375	1	< 0.1%
23376	1	< 0.1%
23377	1	< 0.1%
23378	1	< 0.1%
23380	1	< 0.1%
23422	1	< 0.1%
Other values (35054)	35054	> 99.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	1	< 0.1%
2	1	< 0.1%
3	1	< 0.1%
4	1	< 0.1%
5	1	< 0.1%
6	1	< 0.1%
7	1	< 0.1%
8	1	< 0.1%
9	1	< 0.1%
10	1	< 0.1%

Value	Count	Frequency (%)
35064	1	< 0.1%
35063	1	< 0.1%
35062	1	< 0.1%
35061	1	< 0.1%
35060	1	< 0.1%
35059	1	< 0.1%
35058	1	< 0.1%
35057	1	< 0.1%
35056	1	< 0.1%
35055	1	< 0.1%

year
Categorical

HIGH CORRELATION

Distinct	5
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	274.1 KiB

2016	8784
2014	8760
2015	8760
2013	7344
2017	1416

Length

Max length	4
Median length	4
Mean length	4
Min length	4

Characters and Unicode

Total characters	140256
Distinct characters	8
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	2013
2nd row	2013
3rd row	2013
4th row	2013
5th row	2013

Common Values

Value	Count	Frequency (%)
2016	8784	25.1%
2014	8760	25.0%
2015	8760	25.0%
2013	7344	20.9%
2017	1416	4.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
2016	8784	25.1%
2014	8760	25.0%
2015	8760	25.0%
2013	7344	20.9%
2017	1416	4.0%

Most occurring characters

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring categories

Value	Count	Frequency (%)
Decimal Number	140256	100.0%

Most frequent character per category

Decimal Number

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring scripts

Value	Count	Frequency (%)
Common	140256	100.0%

Most frequent character per script

Common

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	140256	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
2	35064	25.0%
0	35064	25.0%
1	35064	25.0%
6	8784	6.3%
4	8760	6.2%
5	8760	6.2%
3	7344	5.2%
7	1416	1.0%

month
Real number (ℝ)

Distinct	12
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	6.5229295

Minimum	1
Maximum	12
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	1
Q1	4
median	7
Q3	10
95-th percentile	12
Maximum	12
Range	11
Interquartile range (IQR)	6

Descriptive statistics

Standard deviation	3.4487524
Coefficient of variation (CV)	0.52871219
Kurtosis	-1.2080577
Mean	6.5229295
Median Absolute Deviation (MAD)	3
Skewness	-0.0092942217
Sum	228720
Variance	11.893893
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=12)

Value	Count	Frequency (%)
3	2976	8.5%
5	2976	8.5%
7	2976	8.5%
8	2976	8.5%
10	2976	8.5%
12	2976	8.5%
1	2976	8.5%
4	2880	8.2%
6	2880	8.2%
9	2880	8.2%
Other values (2)	5592	15.9%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	2976	8.5%
2	2712	7.7%
3	2976	8.5%
4	2880	8.2%
5	2976	8.5%
6	2880	8.2%
7	2976	8.5%
8	2976	8.5%
9	2880	8.2%
10	2976	8.5%

Value	Count	Frequency (%)
12	2976	8.5%
11	2880	8.2%
10	2976	8.5%
9	2880	8.2%
8	2976	8.5%
7	2976	8.5%
6	2880	8.2%
5	2976	8.5%
4	2880	8.2%
3	2976	8.5%

day
Real number (ℝ)

Distinct	31
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	15.729637

Minimum	1
Maximum	31
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	1
5-th percentile	2
Q1	8
median	16
Q3	23
95-th percentile	29
Maximum	31
Range	30
Interquartile range (IQR)	15

Descriptive statistics

Standard deviation	8.8002175
Coefficient of variation (CV)	0.55946729
Kurtosis	-1.1940295
Mean	15.729637
Median Absolute Deviation (MAD)	8
Skewness	0.0067598056
Sum	551544
Variance	77.443829
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=31)

Value	Count	Frequency (%)
1	1152	3.3%
2	1152	3.3%
28	1152	3.3%
27	1152	3.3%
26	1152	3.3%
25	1152	3.3%
24	1152	3.3%
23	1152	3.3%
22	1152	3.3%
21	1152	3.3%
Other values (21)	23544	67.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
1	1152	3.3%
2	1152	3.3%
3	1152	3.3%
4	1152	3.3%
5	1152	3.3%
6	1152	3.3%
7	1152	3.3%
8	1152	3.3%
9	1152	3.3%
10	1152	3.3%

Value	Count	Frequency (%)
31	672	1.9%
30	1056	3.0%
29	1080	3.1%
28	1152	3.3%
27	1152	3.3%
26	1152	3.3%
25	1152	3.3%
24	1152	3.3%
23	1152	3.3%
22	1152	3.3%

hour
Real number (ℝ)

ZEROS

Distinct	24
Distinct (%)	0.1%
Missing	0
Missing (%)	0.0%
Infinite	0
Infinite (%)	0.0%
Mean	11.5

Minimum	0
Maximum	23
Zeros	1461
Zeros (%)	4.2%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	1
Q1	5.75
median	11.5
Q3	17.25
95-th percentile	22
Maximum	23
Range	23
Interquartile range (IQR)	11.5

Descriptive statistics

Standard deviation	6.9222853
Coefficient of variation (CV)	0.60193785
Kurtosis	-1.2041745
Mean	11.5
Median Absolute Deviation (MAD)	6
Skewness	0
Sum	403236
Variance	47.918033
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=24)

Value	Count	Frequency (%)
0	1461	4.2%
1	1461	4.2%
22	1461	4.2%
21	1461	4.2%
20	1461	4.2%
19	1461	4.2%
18	1461	4.2%
17	1461	4.2%
16	1461	4.2%
15	1461	4.2%
Other values (14)	20454	58.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	1461	4.2%
1	1461	4.2%
2	1461	4.2%
3	1461	4.2%
4	1461	4.2%
5	1461	4.2%
6	1461	4.2%
7	1461	4.2%
8	1461	4.2%
9	1461	4.2%

Value	Count	Frequency (%)
23	1461	4.2%
22	1461	4.2%
21	1461	4.2%
20	1461	4.2%
19	1461	4.2%
18	1461	4.2%
17	1461	4.2%
16	1461	4.2%
15	1461	4.2%
14	1461	4.2%

PM2.5
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	585
Distinct (%)	1.7%
Missing	696
Missing (%)	2.0%
Infinite	0
Infinite (%)	0.0%
Mean	85.024136

Minimum	3
Maximum	999
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	3
5-th percentile	6
Q1	23
median	60
Q3	116
95-th percentile	256
Maximum	999
Range	996
Interquartile range (IQR)	93

Descriptive statistics

Standard deviation	85.975981
Coefficient of variation (CV)	1.011195
Kurtosis	6.698026
Mean	85.024136
Median Absolute Deviation (MAD)	42
Skewness	2.1018226
Sum	2922109.5
Variance	7391.8693
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
3	735	2.1%
10	553	1.6%
11	545	1.6%
9	540	1.5%
12	507	1.4%
8	506	1.4%
7	500	1.4%
13	458	1.3%
6	453	1.3%
14	442	1.3%
Other values (575)	29129	83.1%
(Missing)	696	2.0%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
3	735	2.1%
4	275	0.8%
5	337	1.0%
6	453	1.3%
7	500	1.4%
8	506	1.4%
8.8	1	< 0.1%
9	540	1.5%
10	553	1.6%
11	545	1.6%

Value	Count	Frequency (%)
999	1	< 0.1%
857	1	< 0.1%
826	1	< 0.1%
823	1	< 0.1%
804	1	< 0.1%
748	1	< 0.1%
730	1	< 0.1%
704	1	< 0.1%
690	1	< 0.1%
687	2	< 0.1%

PM10
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	648
Distinct (%)	1.9%
Missing	484
Missing (%)	1.4%
Infinite	0
Infinite (%)	0.0%
Mean	112.22346

Minimum	2
Maximum	961
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	2
5-th percentile	10
Q1	39
median	91
Q3	154
95-th percentile	300
Maximum	961
Range	959
Interquartile range (IQR)	115

Descriptive statistics

Standard deviation	97.59321
Coefficient of variation (CV)	0.86963288
Kurtosis	5.8530021
Mean	112.22346
Median Absolute Deviation (MAD)	56
Skewness	1.8716685
Sum	3880687.2
Variance	9524.4346
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
6	473	1.3%
5	321	0.9%
14	299	0.9%
18	293	0.8%
22	288	0.8%
16	278	0.8%
24	278	0.8%
13	278	0.8%
17	267	0.8%
20	261	0.7%
Other values (638)	31544	90.0%
(Missing)	484	1.4%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
2	12	< 0.1%
3	93	0.3%
4	37	0.1%
5	321	0.9%
6	473	1.3%
7	181	0.5%
8	175	0.5%
9	225	0.6%
10	215	0.6%
11	242	0.7%

Value	Count	Frequency (%)
961	1	< 0.1%
952	1	< 0.1%
950	1	< 0.1%
931	1	< 0.1%
929	1	< 0.1%
915	1	< 0.1%
902	1	< 0.1%
890	1	< 0.1%
886	1	< 0.1%
836	1	< 0.1%

SO2
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	279
Distinct (%)	0.8%
Missing	669
Missing (%)	1.9%
Infinite	0
Infinite (%)	0.0%
Mean	17.148603

Minimum	0.2856
Maximum	411
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0.2856
5-th percentile	2
Q1	3
median	8
Q3	21
95-th percentile	67
Maximum	411
Range	410.7144
Interquartile range (IQR)	18

Descriptive statistics

Standard deviation	23.940834
Coefficient of variation (CV)	1.3960807
Kurtosis	13.150821
Mean	17.148603
Median Absolute Deviation (MAD)	6
Skewness	2.9489241
Sum	589826.2
Variance	573.16352
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
2	8337	23.8%
3	2470	7.0%
4	1873	5.3%
5	1556	4.4%
6	1420	4.0%
8	1174	3.3%
7	1155	3.3%
9	995	2.8%
10	900	2.6%
11	774	2.2%
Other values (269)	13741	39.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0.2856	2	< 0.1%
0.5712	2	< 0.1%
0.8568	8	< 0.1%
1	124	0.4%
1.1424	11	< 0.1%
1.428	15	< 0.1%
1.7136	7	< 0.1%
1.9992	13	< 0.1%
2	8337	23.8%
2.2848	10	< 0.1%

Value	Count	Frequency (%)
411	1	< 0.1%
299	1	< 0.1%
273	1	< 0.1%
272	1	< 0.1%
256	1	< 0.1%
245	1	< 0.1%
236	1	< 0.1%
229	1	< 0.1%
219	1	< 0.1%
217	1	< 0.1%

NO2
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	422
Distinct (%)	1.2%
Missing	754
Missing (%)	2.2%
Infinite	0
Infinite (%)	0.0%
Mean	55.52956

Minimum	2
Maximum	251
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	2
5-th percentile	11
Q1	28
median	49
Q3	77
95-th percentile	124
Maximum	251
Range	249
Interquartile range (IQR)	49

Descriptive statistics

Standard deviation	35.80805
Coefficient of variation (CV)	0.64484663
Kurtosis	0.89190623
Mean	55.52956
Median Absolute Deviation (MAD)	24
Skewness	0.97162044
Sum	1905219.2
Variance	1282.2164
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
32	468	1.3%
30	464	1.3%
29	458	1.3%
28	456	1.3%
20	448	1.3%
26	446	1.3%
22	439	1.3%
38	438	1.2%
36	430	1.2%
35	428	1.2%
Other values (412)	29835	85.1%
(Missing)	754	2.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
2	57	0.2%
3	43	0.1%
4	63	0.2%
5	112	0.3%
5.9537	1	< 0.1%
6	174	0.5%
6.5696	1	< 0.1%
6.7749	1	< 0.1%
7	195	0.6%
7.1855	1	< 0.1%

Value	Count	Frequency (%)
251	1	< 0.1%
241	1	< 0.1%
235	1	< 0.1%
229	1	< 0.1%
228	1	< 0.1%
224	1	< 0.1%
222	1	< 0.1%
221	2	< 0.1%
220.9028	1	< 0.1%
220	1	< 0.1%

CO
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	116
Distinct (%)	0.3%
Missing	1297
Missing (%)	3.7%
Infinite	0
Infinite (%)	0.0%
Mean	1370.395

Minimum	100
Maximum	9800
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	100
5-th percentile	300
Q1	600
median	1000
Q3	1700
95-th percentile	3800
Maximum	9800
Range	9700
Interquartile range (IQR)	1100

Descriptive statistics

Standard deviation	1223.1391
Coefficient of variation (CV)	0.89254491
Kurtosis	7.9141578
Mean	1370.395
Median Absolute Deviation (MAD)	500
Skewness	2.3949878
Sum	46274129
Variance	1496069.3
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
300	2341	6.7%
400	2227	6.4%
700	2157	6.2%
800	2122	6.1%
500	2104	6.0%
600	2100	6.0%
900	1820	5.2%
1000	1736	5.0%
1100	1571	4.5%
1200	1488	4.2%
Other values (106)	14101	40.2%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
100	243	0.7%
200	847	2.4%
300	2341	6.7%
400	2227	6.4%
500	2104	6.0%
600	2100	6.0%
700	2157	6.2%
800	2122	6.1%
900	1820	5.2%
1000	1736	5.0%

Value	Count	Frequency (%)
9800	2	< 0.1%
9700	2	< 0.1%
9600	5	< 0.1%
9500	5	< 0.1%
9400	3	< 0.1%
9300	4	< 0.1%
9200	6	< 0.1%
9100	7	< 0.1%
9000	9	< 0.1%
8900	8	< 0.1%

O3
Real number (ℝ)

HIGH CORRELATION MISSING

Distinct	716
Distinct (%)	2.1%
Missing	1078
Missing (%)	3.1%
Infinite	0
Infinite (%)	0.0%
Mean	56.229904

Minimum	0.2142
Maximum	358
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0.2142
5-th percentile	2
Q1	8
median	42
Q3	82
95-th percentile	180
Maximum	358
Range	357.7858
Interquartile range (IQR)	74

Descriptive statistics

Standard deviation	57.08271
Coefficient of variation (CV)	1.0151664
Kurtosis	1.8896642
Mean	56.229904
Median Absolute Deviation (MAD)	35
Skewness	1.4006449
Sum	1911029.5
Variance	3258.4358
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
2	3596	10.3%
1	1300	3.7%
3	708	2.0%
4	681	1.9%
5	608	1.7%
6	602	1.7%
7	548	1.6%
8	534	1.5%
9	388	1.1%
10	371	1.1%
Other values (706)	24650	70.3%
(Missing)	1078	3.1%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0.2142	4	< 0.1%
0.4284	6	< 0.1%
0.6426	5	< 0.1%
0.8568	1	< 0.1%
1	1300	3.7%
1.071	6	< 0.1%
1.2852	7	< 0.1%
1.4994	4	< 0.1%
1.7136	3	< 0.1%
1.9278	4	< 0.1%

Value	Count	Frequency (%)
358	1	< 0.1%
355	1	< 0.1%
347	1	< 0.1%
340	1	< 0.1%
338	2	< 0.1%
334	1	< 0.1%
333	1	< 0.1%
332	1	< 0.1%
331	1	< 0.1%
329	1	< 0.1%

TEMP
Real number (ℝ)

HIGH CORRELATION

Distinct	965
Distinct (%)	2.8%
Missing	19
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	13.784477

Minimum	-16.8
Maximum	40.6
Zeros	226
Zeros (%)	0.6%
Negative	5072
Negative (%)	14.5%
Memory size	274.1 KiB

Quantile statistics

Minimum	-16.8
5-th percentile	-3.895
Q1	3.4
median	14.8
Q3	23.5
95-th percentile	30.7
Maximum	40.6
Range	57.4
Interquartile range (IQR)	20.1

Descriptive statistics

Standard deviation	11.385156
Coefficient of variation (CV)	0.82594042
Kurtosis	-1.1599163
Mean	13.784477
Median Absolute Deviation (MAD)	9.8
Skewness	-0.10692388
Sum	483076.98
Variance	129.62179
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
3	291	0.8%
0	226	0.6%
1	218	0.6%
2	202	0.6%
-1	192	0.5%
24.1	149	0.4%
-2	144	0.4%
4	140	0.4%
24.6	139	0.4%
5	139	0.4%
Other values (955)	33205	94.7%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
-16.8	2	< 0.1%
-16.3	1	< 0.1%
-16.2	1	< 0.1%
-16.1	1	< 0.1%
-16	1	< 0.1%
-15.9	3	< 0.1%
-15.8	2	< 0.1%
-15.6	1	< 0.1%
-15.4	1	< 0.1%
-15.3	2	< 0.1%

Value	Count	Frequency (%)
40.6	1	< 0.1%
39.8	1	< 0.1%
39	1	< 0.1%
38.8	1	< 0.1%
38.6	1	< 0.1%
38.4	1	< 0.1%
38.3	1	< 0.1%
38.1	1	< 0.1%
38	2	< 0.1%
37.8	2	< 0.1%

PRES
Real number (ℝ)

HIGH CORRELATION

Distinct	607
Distinct (%)	1.7%
Missing	19
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	1011.5118

Minimum	985.1
Maximum	1042
Zeros	0
Zeros (%)	0.0%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	985.1
5-th percentile	995.5
Q1	1002.8
median	1011
Q3	1020
95-th percentile	1028.9
Maximum	1042
Range	56.9
Interquartile range (IQR)	17.2

Descriptive statistics

Standard deviation	10.570928
Coefficient of variation (CV)	0.010450623
Kurtosis	-0.88188006
Mean	1011.5118
Median Absolute Deviation (MAD)	8.5
Skewness	0.12509476
Sum	35448431
Variance	111.74452
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1024	271	0.8%
1025	249	0.7%
1023	238	0.7%
1018	237	0.7%
1026	235	0.7%
1022	231	0.7%
1027	219	0.6%
1017	216	0.6%
1021	214	0.6%
1016	208	0.6%
Other values (597)	32727	93.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
985.1	1	< 0.1%
985.4	1	< 0.1%
986.1	2	< 0.1%
986.7	1	< 0.1%
986.9	2	< 0.1%
987	2	< 0.1%
987.1	1	< 0.1%
987.2	2	< 0.1%
987.3	1	< 0.1%
987.5	2	< 0.1%

Value	Count	Frequency (%)
1042	1	< 0.1%
1041.8	1	< 0.1%
1041.6	1	< 0.1%
1041.4	1	< 0.1%
1041.2	2	< 0.1%
1041.1	2	< 0.1%
1041	2	< 0.1%
1040.9	1	< 0.1%
1040.8	3	< 0.1%
1040.7	1	< 0.1%

DEWP
Real number (ℝ)

HIGH CORRELATION

Distinct	608
Distinct (%)	1.7%
Missing	19
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	2.7074419

Minimum	-35.3
Maximum	28.5
Zeros	70
Zeros (%)	0.2%
Negative	15264
Negative (%)	43.5%
Memory size	274.1 KiB

Quantile statistics

Minimum	-35.3
5-th percentile	-19.8
Q1	-8.5
median	3.3
Q3	15.2
95-th percentile	22.2
Maximum	28.5
Range	63.8
Interquartile range (IQR)	23.7

Descriptive statistics

Standard deviation	13.704139
Coefficient of variation (CV)	5.0616559
Kurtosis	-1.1028939
Mean	2.7074419
Median Absolute Deviation (MAD)	11.9
Skewness	-0.20161265
Sum	94882.3
Variance	187.80343
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
17.3	145	0.4%
15.8	132	0.4%
17.1	132	0.4%
17.6	131	0.4%
16.2	127	0.4%
16.7	127	0.4%
16.8	126	0.4%
17	125	0.4%
16.9	125	0.4%
16.3	123	0.4%
Other values (598)	33752	96.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
-35.3	1	< 0.1%
-35.1	1	< 0.1%
-35	1	< 0.1%
-34.8	1	< 0.1%
-34.5	1	< 0.1%
-34.3	2	< 0.1%
-34.2	1	< 0.1%
-34.1	1	< 0.1%
-33.8	1	< 0.1%
-33.7	1	< 0.1%

Value	Count	Frequency (%)
28.5	1	< 0.1%
28.3	1	< 0.1%
28	2	< 0.1%
27.6	1	< 0.1%
27.5	1	< 0.1%
27.4	6	< 0.1%
27.3	4	< 0.1%
27.2	4	< 0.1%
27.1	5	< 0.1%
27	4	< 0.1%

RAIN
Real number (ℝ)

SKEWED ZEROS

Distinct	121
Distinct (%)	0.3%
Missing	19
Missing (%)	0.1%
Infinite	0
Infinite (%)	0.0%
Mean	0.06432016

Minimum	0
Maximum	46.4
Zeros	33684
Zeros (%)	96.1%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	0
Q1	0
median	0
Q3	0
95-th percentile	0
Maximum	46.4
Range	46.4
Interquartile range (IQR)	0

Descriptive statistics

Standard deviation	0.7969807
Coefficient of variation (CV)	12.390838
Kurtosis	952.32085
Mean	0.06432016
Median Absolute Deviation (MAD)	0
Skewness	26.531529
Sum	2254.1
Variance	0.63517823
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
0	33684	96.1%
0.1	290	0.8%
0.2	156	0.4%
0.3	119	0.3%
0.4	75	0.2%
0.5	72	0.2%
0.6	61	0.2%
0.7	53	0.2%
0.9	41	0.1%
0.8	40	0.1%
Other values (111)	454	1.3%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	33684	96.1%
0.1	290	0.8%
0.2	156	0.4%
0.3	119	0.3%
0.4	75	0.2%
0.5	72	0.2%
0.6	61	0.2%
0.7	53	0.2%
0.8	40	0.1%
0.9	41	0.1%

Value	Count	Frequency (%)
46.4	1	< 0.1%
36.6	1	< 0.1%
33.7	1	< 0.1%
33.1	1	< 0.1%
29.3	1	< 0.1%
24.1	1	< 0.1%
23.8	1	< 0.1%
23.7	1	< 0.1%
22.4	1	< 0.1%
21.7	1	< 0.1%

wd
Categorical

Distinct	16
Distinct (%)	< 0.1%
Missing	79
Missing (%)	0.2%
Memory size	274.1 KiB

NE	3568
SW	3428
ENE	3080
E	2807
WNW	2565
Other values (11)	19537

Length

Max length	3
Median length	2
Mean length	2.2358725
Min length	1

Characters and Unicode

Total characters	78222
Distinct characters	4
Distinct categories	1 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	WNW
2nd row	WNW
3rd row	WNW
4th row	NW
5th row	WNW

Common Values

Value	Count	Frequency (%)
NE	3568	10.2%
SW	3428	9.8%
ENE	3080	8.8%
E	2807	8.0%
WNW	2565	7.3%
NW	2552	7.3%
WSW	2546	7.3%
W	2464	7.0%
SSW	2457	7.0%
ESE	1772	5.1%
Other values (6)	7746	22.1%

Length

Histogram of lengths of the category

Value	Count	Frequency (%)
ne	3568	10.2%
sw	3428	9.8%
ene	3080	8.8%
e	2807	8.0%
wnw	2565	7.3%
nw	2552	7.3%
wsw	2546	7.3%
w	2464	7.0%
ssw	2457	7.0%
ese	1772	5.1%
Other values (6)	7746	22.1%

Most occurring characters

Value	Count	Frequency (%)
W	22310	28.5%
E	19956	25.5%
N	18443	23.6%
S	17513	22.4%

Most occurring categories

Value	Count	Frequency (%)
Uppercase Letter	78222	100.0%

Most frequent character per category

Uppercase Letter

Value	Count	Frequency (%)
W	22310	28.5%
E	19956	25.5%
N	18443	23.6%
S	17513	22.4%

Most occurring scripts

Value	Count	Frequency (%)
Latin	78222	100.0%

Most frequent character per script

Latin

Value	Count	Frequency (%)
W	22310	28.5%
E	19956	25.5%
N	18443	23.6%
S	17513	22.4%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	78222	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
W	22310	28.5%
E	19956	25.5%
N	18443	23.6%
S	17513	22.4%

WSPM
Real number (ℝ)

HIGH CORRELATION ZEROS

Distinct	96
Distinct (%)	0.3%
Missing	13
Missing (%)	< 0.1%
Infinite	0
Infinite (%)	0.0%
Mean	1.745314

Minimum	0
Maximum	13.2
Zeros	635
Zeros (%)	1.8%
Negative	0
Negative (%)	0.0%
Memory size	274.1 KiB

Quantile statistics

Minimum	0
5-th percentile	0.4
Q1	0.9
median	1.4
Q3	2.3
95-th percentile	4.2
Maximum	13.2
Range	13.2
Interquartile range (IQR)	1.4

Descriptive statistics

Standard deviation	1.2063548
Coefficient of variation (CV)	0.69119641
Kurtosis	3.2903588
Mean	1.745314
Median Absolute Deviation (MAD)	0.6
Skewness	1.5306899
Sum	61175
Variance	1.4552918
Monotonicity	Not monotonic

Histogram with fixed size bins (bins=50)

Value	Count	Frequency (%)
1.1	1833	5.2%
1.2	1831	5.2%
1	1778	5.1%
0.9	1749	5.0%
1.3	1689	4.8%
0.8	1657	4.7%
1.4	1559	4.4%
0.7	1451	4.1%
1.5	1418	4.0%
1.6	1298	3.7%
Other values (86)	18788	53.6%

Minimum 10 values
Maximum 10 values

Value	Count	Frequency (%)
0	635	1.8%
0.1	301	0.9%
0.2	362	1.0%
0.3	341	1.0%
0.4	555	1.6%
0.5	886	2.5%
0.6	1187	3.4%
0.7	1451	4.1%
0.8	1657	4.7%
0.9	1749	5.0%

Value	Count	Frequency (%)
13.2	1	< 0.1%
10.1	1	< 0.1%
10	1	< 0.1%
9.9	1	< 0.1%
9.5	1	< 0.1%
9.2	1	< 0.1%
8.9	1	< 0.1%
8.8	1	< 0.1%
8.7	1	< 0.1%
8.6	4	< 0.1%

station
Categorical

CONSTANT

Distinct	1
Distinct (%)	< 0.1%
Missing	0
Missing (%)	0.0%
Memory size	274.1 KiB

Wanshouxigong	35064

Length

Max length	13
Median length	13
Mean length	13
Min length	13

Characters and Unicode

Total characters	455832
Distinct characters	10
Distinct categories	2 ?
Distinct scripts	1 ?
Distinct blocks	1 ?

The Unicode Standard assigns character properties to each code point, which can be used to analyse textual variables.

Unique

Unique	0 ?
Unique (%)	0.0%

Sample

1st row	Wanshouxigong
2nd row	Wanshouxigong
3rd row	Wanshouxigong
4th row	Wanshouxigong
5th row	Wanshouxigong

Common Values

Value	Count	Frequency (%)
Wanshouxigong	35064	100.0%

Length

Histogram of lengths of the category

Common Values (Plot)

Value	Count	Frequency (%)
wanshouxigong	35064	100.0%

Most occurring characters

Value	Count	Frequency (%)
n	70128	15.4%
o	70128	15.4%
g	70128	15.4%
W	35064	7.7%
a	35064	7.7%
s	35064	7.7%
h	35064	7.7%
u	35064	7.7%
x	35064	7.7%
i	35064	7.7%

Most occurring categories

Value	Count	Frequency (%)
Lowercase Letter	420768	92.3%
Uppercase Letter	35064	7.7%

Most frequent character per category

Lowercase Letter

Value	Count	Frequency (%)
n	70128	16.7%
o	70128	16.7%
g	70128	16.7%
a	35064	8.3%
s	35064	8.3%
h	35064	8.3%
u	35064	8.3%
x	35064	8.3%
i	35064	8.3%

Uppercase Letter

Value	Count	Frequency (%)
W	35064	100.0%

Most occurring scripts

Value	Count	Frequency (%)
Latin	455832	100.0%

Most frequent character per script

Latin

Value	Count	Frequency (%)
n	70128	15.4%
o	70128	15.4%
g	70128	15.4%
W	35064	7.7%
a	35064	7.7%
s	35064	7.7%
h	35064	7.7%
u	35064	7.7%
x	35064	7.7%
i	35064	7.7%

Most occurring blocks

Value	Count	Frequency (%)
ASCII	455832	100.0%

Most frequent character per block

ASCII

Value	Count	Frequency (%)
n	70128	15.4%
o	70128	15.4%
g	70128	15.4%
W	35064	7.7%
a	35064	7.7%
s	35064	7.7%
h	35064	7.7%
u	35064	7.7%
x	35064	7.7%
i	35064	7.7%

Auto

Heatmap
Table

	CO	DEWP	NO2	No	O3	PM10	PM2.5	PRES	RAIN	SO2	TEMP	WSPM	day	hour	month	wd	year
CO	1.000	0.125	0.768	-0.077	-0.467	0.746	0.853	0.063	0.007	0.554	-0.216	-0.460	-0.005	-0.036	0.074	0.096	0.079
DEWP	0.125	1.000	-0.002	-0.107	0.270	0.131	0.214	-0.775	0.173	-0.382	0.815	-0.212	0.021	-0.013	0.255	0.113	0.154
NO2	0.768	-0.002	1.000	-0.049	-0.664	0.657	0.680	0.137	-0.083	0.470	-0.292	-0.544	0.021	-0.070	0.072	0.109	0.077
No	-0.077	-0.107	-0.049	1.000	-0.028	-0.077	-0.050	0.259	0.004	-0.260	-0.118	0.094	0.018	0.001	0.044	0.143	0.862
O3	-0.467	0.270	-0.664	-0.028	1.000	-0.228	-0.278	-0.429	0.001	-0.225	0.602	0.458	-0.013	0.281	-0.146	0.138	0.062
PM10	0.746	0.131	0.657	-0.077	-0.228	1.000	0.877	-0.075	-0.084	0.501	-0.055	-0.308	0.028	0.065	-0.023	0.082	0.066
PM2.5	0.853	0.214	0.680	-0.050	-0.278	0.877	1.000	-0.070	-0.030	0.492	-0.065	-0.374	0.001	0.004	-0.001	0.066	0.057
PRES	0.063	-0.775	0.137	0.259	-0.429	-0.075	-0.070	1.000	-0.079	0.274	-0.832	0.017	0.009	-0.035	0.015	0.073	0.182
RAIN	0.007	0.173	-0.083	0.004	0.001	-0.084	-0.030	-0.079	1.000	-0.161	0.037	-0.001	-0.010	-0.008	0.042	0.008	0.004
SO2	0.554	-0.382	0.470	-0.260	-0.225	0.501	0.492	0.274	-0.161	1.000	-0.395	-0.091	0.018	0.036	-0.227	0.039	0.093
TEMP	-0.216	0.815	-0.292	-0.118	0.602	-0.055	-0.065	-0.832	0.037	-0.395	1.000	0.139	0.016	0.139	0.122	0.100	0.149
WSPM	-0.460	-0.212	-0.544	0.094	0.458	-0.308	-0.374	0.017	-0.001	-0.091	0.139	1.000	-0.005	0.163	-0.141	0.148	0.062
day	-0.005	0.021	0.021	0.018	-0.013	0.028	0.001	0.009	-0.010	0.018	0.016	-0.005	1.000	0.000	0.010	0.028	0.000
hour	-0.036	-0.013	-0.070	0.001	0.281	0.065	0.004	-0.035	-0.008	0.036	0.139	0.163	0.000	1.000	0.000	0.117	0.000
month	0.074	0.255	0.072	0.044	-0.146	-0.023	-0.001	0.015	0.042	-0.227	0.122	-0.141	0.010	0.000	1.000	0.082	0.249
wd	0.096	0.113	0.109	0.143	0.138	0.082	0.066	0.073	0.008	0.039	0.100	0.148	0.028	0.117	0.082	1.000	0.170
year	0.079	0.154	0.077	0.862	0.062	0.066	0.057	0.182	0.004	0.093	0.149	0.062	0.000	0.000	0.249	0.170	1.000

A simple visualization of nullity by column.

Nullity matrix is a data-dense display which lets you quickly visually pick out patterns in data completion.

The correlation heatmap measures nullity correlation: how strongly the presence or absence of one variable affects the presence of another.

First rows
Last rows

	No	year	month	day	hour	PM2.5	PM10	SO2	NO2	CO	O3	TEMP	PRES	DEWP	wd	WSPM	station
0	1	2013	3	1	0	9.0	9.0	6.0	17.0	200.0	62.0	0.3	1021.9	-19.0	WNW	2.0	Wanshouxigong
1	2	2013	3	1	1	11.0	11.0	7.0	14.0	200.0	66.0	-0.1	1022.4	-19.3	WNW	4.4	Wanshouxigong
2	3	2013	3	1	2	8.0	8.0	NaN	16.0	200.0	59.0	-0.6	1022.6	-19.7	WNW	4.7	Wanshouxigong
3	4	2013	3	1	3	8.0	8.0	3.0	16.0	NaN	NaN	-0.7	1023.5	-20.9	NW	2.6	Wanshouxigong
4	5	2013	3	1	4	8.0	8.0	3.0	NaN	300.0	36.0	-0.9	1024.1	-21.7	WNW	2.5	Wanshouxigong
5	6	2013	3	1	5	10.0	10.0	4.0	8.0	200.0	64.0	-1.6	1024.7	-21.1	NE	2.0	Wanshouxigong
6	7	2013	3	1	6	8.0	8.0	6.0	13.0	300.0	61.0	-2.4	1025.4	-20.3	NE	2.3	Wanshouxigong
7	8	2013	3	1	7	8.0	8.0	8.0	20.0	300.0	54.0	-0.8	1026.7	-19.9	NNE	2.0	Wanshouxigong
8	9	2013	3	1	8	3.0	6.0	9.0	23.0	300.0	50.0	0.4	1027.3	-19.4	NE	2.7	Wanshouxigong
9	10	2013	3	1	9	3.0	6.0	10.0	18.0	300.0	56.0	1.5	1027.4	-19.7	ENE	2.9	Wanshouxigong

	No	year	month	day	hour	PM2.5	PM10	SO2	NO2	CO	O3	TEMP	PRES	DEWP	wd	WSPM	station
35054	35055	2017	2	28	14	3.0	6.0	NaN	5.0	NaN	82.0	14.6	1013.3	-15.6	N	3.6	Wanshouxigong
35055	35056	2017	2	28	15	11.0	21.0	2.0	5.0	200.0	NaN	15.4	1013.0	-15.0	NNW	3.3	Wanshouxigong
35056	35057	2017	2	28	16	6.0	20.0	3.0	NaN	200.0	80.0	14.9	1012.6	-15.4	NW	2.1	Wanshouxigong
35057	35058	2017	2	28	17	11.0	23.0	3.0	12.0	300.0	87.0	14.2	1012.5	-14.9	NW	3.1	Wanshouxigong
35058	35059	2017	2	28	18	11.0	30.0	2.0	16.0	300.0	82.0	13.4	1013.0	-15.5	WNW	1.4	Wanshouxigong
35059	35060	2017	2	28	19	11.0	32.0	3.0	24.0	400.0	72.0	12.5	1013.5	-16.2	NW	2.4	Wanshouxigong
35060	35061	2017	2	28	20	13.0	32.0	3.0	41.0	500.0	50.0	11.6	1013.6	-15.1	WNW	0.9	Wanshouxigong
35061	35062	2017	2	28	21	14.0	28.0	4.0	38.0	500.0	54.0	10.8	1014.2	-13.3	NW	1.1	Wanshouxigong
35062	35063	2017	2	28	22	12.0	23.0	4.0	30.0	400.0	59.0	10.5	1014.4	-12.9	NNW	1.2	Wanshouxigong
35063	35064	2017	2	28	23	13.0	19.0	4.0	38.0	600.0	49.0	8.6	1014.1	-15.9	NNE	1.3	Wanshouxigong

Overview

Variables

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Decimal Number

Most occurring scripts

Most frequent character per script

Common

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Most occurring characters

Most occurring categories

Most frequent character per category

Uppercase Letter

Most occurring scripts

Most frequent character per script

Latin

Most occurring blocks

Most frequent character per block

ASCII

Common Values

Length

Common Values (Plot)

Most occurring characters

Most occurring categories

Most frequent character per category

Lowercase Letter

Uppercase Letter

Most occurring scripts

Most frequent character per script

Latin

Most occurring blocks

Most frequent character per block

ASCII

Interactions

Correlations

Missing values

Sample